<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
                                             xmlns:app="http://schemas.android.com/apk/res-auto"
                                             xmlns:tools="http://schemas.android.com/tools"
                                             android:layout_width="match_parent"
                                             android:layout_height="match_parent">

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="56dp"
        android:background="@color/primary"
        android:elevation="4dp"
        android:theme="@style/ThemeOverlay.AppCompat.Dark"
        tools:ignore="UnusedAttribute"
        tools:layout_constraintTop_creator="1"
        tools:layout_constraintLeft_creator="1"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintTop_toTopOf="parent"/>


    <TextView
        android:id="@+id/htpBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:clickable="true"
        android:gravity="center_horizontal"
        android:onClick="change"
        android:text="@string/Htp"
        android:textIsSelectable="false"
        android:textSize="40sp"
        tools:layout_constraintRight_creator="1"
        tools:layout_constraintBottom_creator="1"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        tools:layout_constraintLeft_creator="1"
        android:layout_marginBottom="221dp"
        app:layout_constraintLeft_toLeftOf="parent"/>

    <TextView
        android:id="@+id/playBtn"
        android:layout_height="wrap_content"
        android:clickable="true"
        android:onClick="change"
        android:text="@string/Play"
        android:textSize="40sp"
        android:layout_width="wrap_content"
        tools:layout_constraintRight_creator="1"
        tools:layout_constraintBottom_creator="1"
        app:layout_constraintBottom_toTopOf="@+id/htpBtn"
        app:layout_constraintRight_toRightOf="parent"
        tools:layout_constraintLeft_creator="1"
        android:layout_marginBottom="32dp"
        app:layout_constraintLeft_toLeftOf="parent"/>


</android.support.constraint.ConstraintLayout>